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| | Bombardier Beetle's chemical weapon |
 | | The defense mechanism includes: the hydraquinone and hydrogen peroxide reactants, the oxidative enzymes, the two reservoirs which contain the mixture of chemicals, the thin walls of these reservoirs which permit muscular control, the thick-walled reaction chamber (providing robustness), and the valve which seals the reservoirs from the reaction chamber. |
 | | This problem does not arise for the beetle: the pulsed mechanism produces an effective deterrent with (a) minimum muscular force, (b) good control of direction and duration, and (c) a high discharge velocity. |
 | | In this case, the research team conclude that in the context of its end use, the defence mechanism of the beetle cannot be improved: `For this purpose, the pulsed mechanism is ideal'. |
| www.nwnet.co.uk /pages/uk/org/bcs/Bcs049.htm (714 words) |
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